Background and Purpose: Pistacia atlantica, which belongs to the Anacardiaceae family, grows in the Zagrossian region of Iran. The aim of this study was to evaluate the antifungal properties of Pistacia atlantica and olive leaf extracts against different fungal species.Materials and Methods:In this study, we assessed the activities of olive leaf extracts and Pistacia atlantica leaf and fruit extracts against Candida species, including C. albicans, C. glabrata, C. tropicalis, and C. krusei. In addition, antifungal activities against three filamentous species, i.e., Aspergillus niger, Aspergillus flavus, and Aspergillus fumigates, were assessed, using the agar-well diffusion method. Results:The minimal inhibitory concentrations (MICs) values of fruit and leaf extracts from Pistacia atlantica ranged 6.25-12.5 mg ml-1 and 6.25-25 mg ml-1 against the tested Candida and Aspergillus species, respectively. The olive leaf extracts showed no activity against Candida species or Aspergillus flavus, while they exhibited antifungal potency against Aspergillus niger and Aspergillus fumigatus (MIC: 12.5-25 mg/ml). The MICs of the mixture of selected extracts ranged from 6.25 to 25 mg/ml.Conclusion:Based on the results, the ethanolic extracts of the selected plants exhibited antifungal potency against the tested fungi and could be used as natural antifungal agents.

Background and Purpose:Herbal toothpastes are more secure and efficacious and less poisonous due to containing natural chemicals as compared with the synthetic toothpastes. The present study aimed to formulate a polyherbal toothpaste using accessible medicinal plants in Iran and evaluate its efficiency in the protection of oral hygiene and prevention of dental caries.Materials and Methods:The developed toothpaste was made of the leaf extracts of Artemisia dracunculus, Satureja khuzestanica (Jamzad), and Myrtus communis (Linn), combined at four different dilutions, namely 1:4 (25%), 1:1 (50%), 3:4 (75%), and (100%), with sterile distilled water. The product was tested against five microorganisms, including Streptococcus mutans, Lactobaccilus caseie, S. sanguis, S. salivarius, and Candida albicans, using agar well diffusion method. Results:After 24 h of incubation, the maximum mean diameters of inhibition zone against L. caseie and C. albicans were obtained as 17-30 and 10-25 mm, respectively. Furthermore, the minimum mean diameter of inhibition zone against S. salivarious was estimated as 15-20 mm.Conclusion:The formulated toothpaste showed potent inhibitory activities against Gram-positive bacteria and C. albicans. Therefore, more studies are required to accurately investigate the efficacy of the formulated toothpaste.

Background: Leishmaniasis is a parasitic disease that occurs in subtropical and tropical regions with approximately 350 million people worldwide and 2 million new cases annually. The annual increase in cutaneous leishmaniasis (CL) is observed, especially in endemic areas such as Iran. Since there is no effective vaccine, the detection of natural anti-leishmanial products is essential. Objective: The purpose of this study was to evaluate the in vitro anti-leishmanial activity of two herbal medicine including Artemisia dracunculus L. and Heracleum persicum Desf. (Golpar). Materials and Methods: The extracts of selected plants were obtained by maceration, and in vitro anti-leishmanial activity was assayed on Leishmania major and Leishmania infantum promastigotes using colorimetric MTT [3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium bromide] assay in comparison with glucantime as a reference. Results: Based on the results, 50% inhibitory concentration (IC50) values of selected plants and glucantime solutions were determined at 24, 48, and 72 hours incubation. Further, the anti-leishmanial activity of the leaf extract of A. dracunculus with IC50 values of 1.85 and 3.5 µg/mL and the fruit extract of H. persicum with values of 31.32 and 11.7 µg/mL were evaluated against L. major and L. infantum promastigotes, respectively. Conclusion: These results revealed anti-leishmania properties of the above-mentioned plants and the need to study the effects of these extracts on the Leishmania genus in animal models and in vivo assay in the future.

Background: The ethanolic extract of Myrtus communis Linn. leaves was assayed in vitro as a growth inhibitor against opportunistic fungi such as Candida and Aspergillus species. Myrtus communis Linn. (Family, Myrtaceae) is an aromatic evergreen shrub or small tree. It is native to the Mediterranean region. Objectives: This study aimed to assess antifungal activity (in vitro) of the ethanolic extracts of Myrtus communis leaves as a growth inhibitor against 24 clinical isolates of Candida, including C. albicans, C. glabrata, and C. tropicalis also three species of Aspergillus, including A. niger, A. flavus, and A. terreus. Materials and Methods: The ethanolic extract of myrtle leaves was prepared by maceration method and minimal inhibitory concentration (MIC) of Myrtus communis leaves extract was determined by agar-well diffusion technique. Amphotericin B and clotrimazole were used as the positive control in this assay. Results: The minimal inhibitory concentration (MICs) values of Myrtus communis leaves extract ranged 0.625-5.0 µg/µL and 5-40 µg/µL against tested Candida spp. and Aspergillus spp., respectively. Conclusions: Results revealed that the ethanolic extract of Myrtus communis leaves have antifungal potency against both pathogenic tested fungi, and it can be used as a natural antifungal agent.

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